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Finding the Third Proportional to 9,372.50 and 19,959

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Solution

The third proportional to 9,372.50 and 19,959 is: 42,503.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,372.50 : 19,959 = 19,959 : x
  2. Step 2: Convert to fraction form
    9,372.50/19,959 = 19,959/x
  3. Step 3: Cross multiply
    9,372.50x = 19,959 × 19,959
  4. Step 4: Simplify right side
    9,372.50x = 398,361,681
  5. Step 5: Solve for x
    x = 398,361,681/9,372.50
  6. Step 6: Final answer
    x = 42,503.25

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.